scholarly journals Influence of temperature conditions on seasonal development of Cydalima Perspectalis Walker, 1859 (lepidoptera: crambidae) in the Crimea

2021 ◽  
pp. 45-51
Author(s):  
A. K. Sharmagiy ◽  
S. P. Korsakova
Keyword(s):  
Early Stage ◽  
Seasonal Development ◽  
Southern Coast ◽  
Degree Days ◽  
Hydrothermal Conditions ◽  
Asynchronous Development ◽  
Air Temperatures ◽  
Wide Range ◽  
Sum Of Effective Temperatures ◽  
The Crimea

In 2018-2020 phenological observations of Cydalima perspectalis Walker were carried out in two agroclimatic regions of the Crimea. The pest, both on the Southern Coast of the Crimea and in the central foothill zone, develops in three generations. The sum of effective temperatures required for the development of generations varies over the years in a wide range, which is due to the asynchronous development of the caterpillars of C. perspectalis . The beginning of summer of the adults of the overwintered generation over the years of research in both regions differed insignificantly and was noted with the accumulation of the sums of effective air temperatures above 10°С on the Southern Coast of the Crimea from 210 to 297 degree days, and in Simferopol - from 222 to 299 degree days. It was found that in the summer months in the central foothill zone of the Crimea, in terms of temperature indicators, more favorable conditions are created for the development of boxwood firewood than on the Southern Coast of the Crimea. The combination of hydrothermal conditions, in which air temperatures exceed 33-36°C, and the relative humidity drops below 19-49%, cause the death of up to 20-28% of Cydalima perspectalis egg embryos at an early stage of embryogenesis. From the embryos of eggs of later stages of embryogenesis, under these conditions, the hatching of caterpillars occurred by 100%.

scholarly journals Seasonal development of aboveground phytomass of evergreen introduced plants on the Southern Coast of the Crimea

2021 ◽  
Vol 843 (1) ◽  
pp. 012047
Author(s):  
Yu V Plugatar ◽  
M S Kovalev ◽  
S P Korsakova
Keyword(s):  
Nerium Oleander ◽  
Seasonal Development ◽  
Southern Coast ◽  
Seasonal Growth ◽  
Aboveground Phytomass ◽  
Aucuba Japonica ◽  
Introduced Plants ◽  
Air Temperatures ◽  
The Crimea ◽  
Growth Features

Abstract For the Southern Coast of Crimea, the problem of park communities’ productivity, due to the high recreational load on the environment and climate change, is of particular relevance. The aim of the research was to study the features of the introduced park communities evergreen aboveground phytomass formation and seasonal growth in the conditions of the Southern coast of the Crimea. A comparative assessment of vegetative shoots seasonal growth features of plants Laurus nobilis L., Prunus laurocerasus L., Viburnum tinus L., Aucuba japonica Thunb and Nerium oleander L. was performed. It was found that the time of renewal of shoot growth in spring after winter dormancy in V. tinus and A. japonica began at 459-462 °C, P. laurocerasus - 649 °C, and L. nobilis - 886 °C and N. oleander - 990 °C amounts of active air temperatures above 5 °C. The largest growth (49.3 cm) and the accumulation of leaf phytomass (42.3 cm3) differ in annual shoots of N. oleander. P. laurocerasus has a great potential with a phytomass volume an annual shoot of 24.5 cm3. The increase of shoots phytomass in V. tinus, A. japonica, and L. nobilis is 7-8 times less than that in N. oleander.

scholarly journals АГРОЕКОЛОГІЧНЕ ВИПРОБУВАННЯ СОРТІВ ЯРИХ ЗЕРНОВИХ КУЛЬТУР У ПІВНІЧНОМУ СТЕПУ УКРАЇНИ

2016 ◽  
Vol 6 (3) ◽  
pp. 54-60
Author(s):  
A. D. Gyrka ◽  
I. O. Kulyk ◽  
O. O. Pedash ◽  
O. O. Viniukov ◽  
V. A. Ischenko
Keyword(s):  
Grain Yield ◽  
Crop Yields ◽  
Spring Barley ◽  
Hydrothermal Conditions ◽  
Air Temperatures ◽  
Spring Triticale ◽  
Low Weight ◽  
Grain Productivity ◽  
Wide Range ◽  
Water Provision

Here are presented the results of the analysis of available variety assortment and grain yields of different varieties of spring small cereals: barley, oat, wheat and triticale towards their agroecological genetic flexibility and grain productivity in changing hydrothermal conditions. We marked the varieties, which characterized by high genetic potential of grain yield in a wide range of variation of average air temperatures and conditions of water provision. In the conditions of the Northern Steppe of Ukraine in 2011-2015 the high crop yields (3.60-3.64 t/ha) formed varieties of spring barley: Galaktyk, Statok and Vsesvit. Among the oats varieties the best crop yields (3.34-3.46 t/ha) provided Iren and Spurt and it was specified as almost the best barley variety according to this indicator. The Spadschyna and Kharkivs’ka-39 varieites had the best crop yield among the spring wheat (1.74-1.81 t/ha). Spring triticale had the lowest grain yield among spring crops (1,07-1,21 t/ha) due to the low weight of 1000 grains and insufficient grain yield per ear.

scholarly journals About naturalization of Berberis aquifolium in the territory of Nature Reserves of the Southern Coast of the Crimea

2021 ◽  
pp. 17-28
Author(s):  
N. A. Bagrikova ◽  
Z. D. Bondarenko ◽  
O. N. Reznikov
Keyword(s):  
Biological Invasions ◽  
Protected Areas ◽  
Sea Level ◽  
Forest Belt ◽  
Mountain Forest ◽  
Southern Coast ◽  
Stage Of Development ◽  
Wide Range ◽  
The Crimea ◽  
Natural Communities

At the present stage of development of the economies of different states, the problem of biological invasions is considered one of the top-priorities. A special place among the different areas of research of biological invasions is occupied by the study of the most aggressive and dangerous alien plants in Protected Areas, as they pose a threat to the conservation of ecosystems and their biodiversity. The paper provides information on the phytocenotic diversity of communities with Berberis aquifolium Purch in native - in North America, as well as data on the distribution and degree of naturalization of the species in Eurasia, Australia, and New Zealand. It is established that Mahonia in many regions has the status of an invasive species, it is found both in anthropogenic disturbed and in natural communities, inhabiting a wide range of ecotopes (forest parks, meadows, forests, coastal dunes, etc.). On the Southern Coast of the Crimea, communities with Berberis aquifolium Purch were identified in forest park stands, as well as in coniferous and mixed forests, which belong to the classes Erico-Pinetea, Quercetea pubescentis according to the Braun-Blanquet classification. Preliminary data on the invasion of the species in the natural communities of two Protected Areas (PAs) - "Yalta Mountain Forest" and "Cape Martyan" are presented. The species is most widespread at altitudes from 200 to 400 m above sea level in pine, oak-hornbeam-pine and oak-pine forests belonging to the class Erico-Pinetea . In the lower forest belt at an altitude of up to 200 m above sea level, it is found in the pubescent oak-hornbeam and ash-oak-dogwood communities with Juniperus excelsa , J. deltoides , and Pinus pallasianae , which are part of the class Quercetea pubescentis .

Vulnerability of sweet cherry cultivars to continuous periods of spring frosts in Plovdiv, Bulgaria

2020 ◽  
Vol 12 (4) ◽  
pp. 348-352
Author(s):  
S. Malchev ◽  
S. Savchovska
Keyword(s):  
Sweet Cherry ◽  
Weather Conditions ◽  
Frost Damage ◽  
Cold Weather ◽  
Bud Burst ◽  
Intermediate Group ◽  
Air Temperatures ◽  
Wide Range ◽  
Group Form ◽  
Sweet Cherry Cultivars

Abstract. The periods with continuous freezing air temperatures reported during the spring of 2020 (13 incidents) affected a wide range of local and introduced sweet cherry cultivars in the region of Plovdiv. They vary from -0.6°C on March 02 to -4.9°C on March 16-17. The duration of influence of the lowest temperatures is 6 and 12 hours between March 16 and 17. The inspection of fruit buds and flowers was conducted twice (on March 26 and April 08) at different phenological stages after continuous waves of cold weather conditions alternated with high temperatures. During the phenological phase ‘bud burst’ (tight cluster or BBCH 55) some of the flowers in the buds did not develop further making the damage hardly detectable. The most damaged are hybrid El.28-21 (95.00%), ‘Van’ (91.89%) and ‘Bing’ (89.41%) and from the next group ‘Lapins’ (85.98%) and ‘Rosita’ (83.33%). A larger intermediate group form ‘Kossara’ (81.67%), ‘Rozalina’ (76.00%), ‘Sunburst’ (75.00%), ‘Bigarreau Burlat’ (69.11%) and ‘Kuklenska belitza’ (66.67%). Candidate-cultivar El.17-90 ‘Asparuh’ has the lowest frost damage values of 55.00% and El.17-37 ‘Tzvetina’ with damage of 50.60%.

Additions and clarifications to the flora of “Castel” nature reserve (the Southern Coast of the Crimea)

2020 ◽  
pp. 112-127
Author(s):  
L. E. Ryff
Keyword(s):  
Vascular Plants ◽  
Nature Reserve ◽  
Vascular Plant ◽  
Field Research ◽  
Southern Coast ◽  
Crimean Peninsula ◽  
Annotated List ◽  
The Crimea ◽  
Protected Natural Area ◽  
Biological Flora

The aim of the work is to supplement and clarify the annotated list of vascular plants of “Castel” nature reserve on the Southern coast of the Crimea. Methods. The work is based on the results of long standing field research, which was carried out by the traditional route-reconnaissance method, analysis of YALT herbarium materials and data from literary and Internet sources. Arealogical and biomorphological characteristics of species are given according to "Biological Flora of the Crimea" by V.N. Golubev, biotope coding according to EUNIS habitat classification. The nomenclature of taxa corresponds to the " Spontaneuos flora of the Crimean peninsula" by A.V. Yena and to international databases Euro+Med PlantBase, The Plant List, Catalog of Life. Results. An additional annotated list of vascular plants of “Castel” nature reserve has been compiled, including 152 species, subspecies and cultivars from 97 genera of 38 families, of which 53 genera and 11 families have also not been cited for this territory before. Arealogical, biomorphological, biotopic and sozological characteristics of the taxa are given. As a result of a critical analysis of the list previously published by E.S. Krainyuk, four species were redefined, two species were proposed to be excluded from the flora of the specially protected natural area, several taxa are considered doubtful. Conclusions. The list of vascular plant taxa in “Castel” nature reserve has been supplemented with 11 families, 53 genera, and 152 species, subspecies, and cultivars; several species from the previously compiled list have been proposed to be excluded or considered doubtful. Thus, the flora of the protected area includes at least 425 species from 68 families. For the first time, the biotopic characteristic of the flora of the reserve was established.

scholarly journals Photonic Crystal Nanobeam Cavities for Nanoscale Optical Sensing: A Review

Micromachines ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 72 ◽  
Author(s):  
Da-Quan Yang ◽  
Bing Duan ◽  
Xiao Liu ◽  
Ai-Qiang Wang ◽  
Xiao-Gang Li ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Waveguides ◽  
Optical Sensing ◽  
Early Stage ◽  
Disease Diagnosis ◽  
Label Free ◽  
Quality Factors ◽  
Integrated Sensor ◽  
Early Stage Disease ◽  
Wide Range

The ability to detect nanoscale objects is particular crucial for a wide range of applications, such as environmental protection, early-stage disease diagnosis and drug discovery. Photonic crystal nanobeam cavity (PCNC) sensors have attracted great attention due to high-quality factors and small-mode volumes (Q/V) and good on-chip integrability with optical waveguides/circuits. In this review, we focus on nanoscale optical sensing based on PCNC sensors, including ultrahigh figure of merit (FOM) sensing, single nanoparticle trapping, label-free molecule detection and an integrated sensor array for multiplexed sensing. We believe that the PCNC sensors featuring ultracompact footprint, high monolithic integration capability, fast response and ultrahigh sensitivity sensing ability, etc., will provide a promising platform for further developing lab-on-a-chip devices for biosensing and other functionalities.

scholarly journals Non-Albumin Proteinuria (NAP) as a Complementary Marker for Diabetic Kidney Disease (DKD)

Life ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 224
Author(s):  
Jaehyun Bae ◽  
Young Jun Won ◽  
Byung-Wan Lee
Keyword(s):  
Kidney Disease ◽  
Filtration Rate ◽  
Diabetic Kidney Disease ◽  
Estimated Glomerular Filtration Rate ◽  
Early Stage ◽  
Screening Tools ◽  
Tubular Injury ◽  
Current Standard ◽  
Diabetic Kidney ◽  
Wide Range

Diabetic kidney disease (DKD) is one of the most common forms of chronic kidney disease. Its pathogenic mechanism is complex, and it can affect entire structures of the kidney. However, conventional approaches to early stage DKD have focused on changes to the glomerulus. Current standard screening tools for DKD, albuminuria, and estimated glomerular filtration rate are insufficient to reflect early tubular injury. Therefore, many tubular biomarkers have been suggested. Non-albumin proteinuria (NAP) contains a wide range of tubular biomarkers and is convenient to measure. We reviewed the clinical meanings of NAP and its significance as a marker for early stage DKD.

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